1
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Aqua regia is used for dissolving noble metals (Au, Pt, etc.). The gas evolved in this process is :
A
N2O3
B
N2
C
N2O5
D
NO
2
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An acidic buffer is obtained on mixing :
A
100 mL of 0.1 M HCl and 200 mL of 0.1 M CH3COONa
B
100 mL of 0.1 M HCl and 200 mL of 0.1 M NaCl
C
100 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH
D
100 mL of 0.1 M CH3COOH and 200 mL of 0.1 M NaOH
3
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The antifertility drug “Novestrol” can react with :
A
Br2 /water; ZnCl2 /HCl; FeCl3
B
Br2 /water; ZnCl2 /HCl; NaOCl
C
Alcoholic HCN; NaOCl; ZnCl2 /HCl
D
ZnCl2 /HCl; FeCl3 ; Alcoholic HCN
4
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compounds produces an optically inactive compound on hydrogenation?
A
JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Question 74 English Option 1
B
JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Question 74 English Option 2
C
JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Question 74 English Option 3
D
JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Question 74 English Option 4
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